activity
20112026
most citedCensus and classification of low-surface-brightness structures in nearby early-type galaxies from the MATLAS survey

82 citations · 422 across the 25 of their papers we have counts for

collaborators

25 papers

astro-ph.GA2026

An automated activity classification tool for optical galaxy spectra

C. Daoutis, A. Zezas, E. Kyritsis +2

Reliable, versatile galaxy activity diagnostics are essential for understanding galaxy evolution. Traditional methods frequently necessitate extensive preprocessing, such as starli…

astro-ph.GA2025★ 1 cited

A machine-learning photometric classifier for massive stars in nearby galaxies II. The catalog

G. Maravelias, A. Z. Bonanos, K. Antoniadis +8

Mass loss is a key aspect of stellar evolution, particularly in evolved massive stars, yet episodic mass loss remains poorly understood. To investigate this, we need evolved massiv…

astro-ph.GA2024

From seagull to hummingbird: New diagnostic methods for resolving galaxy activity

C. Daoutis, A. Zezas, E. Kyritsis +2

Context. A major challenge in astrophysics is classifying galaxies by their activity. Current methods often require multiple diagnostics to capture the full range of galactic activ…

astro-ph.GA2022

Using machine learning to investigate the populations of dusty evolved stars in various metallicities

Grigoris Maravelias, Alceste Z. Bonanos, Frank Tramper +7

Mass loss is a key property to understand stellar evolution and in particular for low-metallicity environments. Our knowledge has improved dramatically over the last decades both f…

astro-ph.SR2022★ 22 cited

A machine-learning photometric classifier for massive stars in nearby galaxies I. The method

Grigoris Maravelias, Alceste Z. Bonanos, Frank Tramper +3

(abridged) Mass loss is a key parameter in the evolution of massive stars, with discrepancies between theory and observations and with unknown importance of the episodic mass loss.…

astro-ph.SR2021★ 15 cited

A new automated tool for the spectral classification of OB stars

E. Kyritsis, G. Maravelias, A. Zezas +3

(abridged) We develop a tool for the automated spectral classification of OB stars according to their sub-types. We use the regular Random Forest (RF) algorithm, the Probabilistic…